DOI:
10.1055/s-00000060
PPmP - Psychotherapie · Psychosomatik · Medizinische Psychologie
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References
Kroenke K, Spitzer RL, Williams JB..
The PHQ-9: validity of a brief depression severity measure.
J Gen Intern Med 2001;
16: 606-613 DOI: 10.1046/j.1525-1497.2001.016009606.x
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